Boost your productivity with these command-line tools

In this article, I will demonstrate the command-line tools that I use most often. I can almost promise you that you will learn something new.

Prerequisites

• You know how to use the command-line
• You are using Mac OS. (Not all tools exist on Windows or Linux, but the same concepts and most of the tools should still apply.)

iterm2

I use iterm2 instead of the standard terminal on Mac OS. I have never really used the standard terminal app because iterm2 has a wider feature set and is much easier on the eyes (especially if you use solarized-light!)

Bonus tip: Did you know you can load and save your settings to a folder? This can be found in Preferences -> General. I save and load from a file that is checked into version control.

oh-my-zsh

1. Set up oh-my-zsh with a script from https://github.com/robbyrussell/oh-my-zsh
2. Choose your theme (I just use the standard one)
3. Add your favourite plugins

Check out the wiki for more information.

Plugins

The plugins that I use are:

• colored-man-pages: makes it easier to read man pages
• fasd: file navigation (more on this later)
• git: git aliases

Features

git aliases

• ga='git add'
• gst='git status'
• gup='git pull --rebase'

Navigation

• ..='cd ..'
• ...=../..

Up arrow completion

1. cd
2. Pressing the up-arrow key might show cd dev, which is the last time cd was used.
3. Pressing the up-arrow key again might show cd src, which is the second last time cd was used.
4. Pressing the down-arrow key will show cd dev, which is the last time cd was used.

cd tab completion

1. cd space tab shows a list of possible directories to change to. For example: node_modules/ public/ src/
2. Pressing tab again will allow you to navigate through the list

Homebrew

Set up Homebrew with a script from https://brew.sh/

Homebrew can be used to install almost anything. Here are some commands I use most often:

brew install

Install almost any package with brew install <package>

• brew install node
• brew install git

brew cask install

Install almost any application with brew cask install <application>

• brew cask install dropbox
• brew cask install spotify

brew bundle

1. brew bundle dump --force copies all your packages and casks into a Brewfile
2. brew bundle installs packages and casks from a Brewfile

Bonus tip: Check the Brewfile into version control! Next time you get a new computer all you have to do is install Homebrew and then type brew bundle.

brew upgrade

Update all your packages and casks at once with brew upgrade.

fasd

fasd can be set up as follows:

1. Install fasd with brew install fasd
2. Add oh-my-zsh plugin.

fasd has one job (for me) and that is to navigate to recently visited directories. Let's say I want to navigate to a directory I have previously visited like ~/dev/misc/terraform/terraform-serverless-example. Instead of typing out the whole path I just type z terra ex and I'm already there!

Version managers

If you need to switch between multiple versions of a programming language it's easier to use version managers. Node has nvm, Python has pyenv, Ruby has rbenv and Java has jenv.

Switching between multiple versions is not the only benefit. If you are working on a team and using Node you could check an .nvmrc file into version control and every developer can apply the same version with nvm use.

File links

With file links you can tell your terminal where to look for certain files. For example with:

ln -s ~/dev/dotfiles/gitconfig ~/.gitconfig

you tell your terminal that your git config is actually stored at ~/dev/dotfiles/gitconfig. If you need to view or edit the file you can open the file from ~/dev/dotfiles/gitconfig or ~/.gitconfig.

Bonus tip 1: You can store all your configuration files in version control and link to them on your machine. I do this for my .gitcongfig, .zshrc and .vimrc.

Bonus tip 2: If you have different git configurations for different projects you can add the following to your gitconfig:

[includeIf "gitdir:~/dev/work/"]
  path = ~/dev/work/gitconfig

Bonus tip 3: If you don't want to check-in sensitive data (eg. environment variables) from your .zshrc into version control you can source a local file with:

source ~/.zshrc-local

bat and exa

bat is a replacement for cat but with syntax highlighting. exa is a replacement for ls but with color coding and sensible defaults.

Check out 7 Awesome Rust-powered Command-line Utilities for similar tools.

Final thoughts

Learning each of these tools has levelled up my productivity and I hope it has the same effect on you. After mastering these tools you might want to start tackling vim :D.

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